Monthly outlook for Lookout Mountain, AZ: average high 102.6°, average low 87.7°. That is 0.4° above the climate normal for August. Precipitation is expected on 6 days (about 1.5 inches), against a normal of 2 days and 0.8 inches. The warmest day looks like 9 August (112.2°), the coolest 13 August (81.3°).
102.6°/87.7°
Average high / low
+0.4°
Above normal
6 / 2
Wet days / normal
1.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
104.4°
102.2°
+1.2°
18 August – 27 August
99.7°
101.4°
-0.9°
28 August – 6 September
at normal
101.2°
—
August records over 66 years
117.7°7 August 2025All-time high
63°21 August 1979All-time low
Climate normals and records are computed from the nearest reference point — Phoenix (5 mi).
Sun, 09112° / 89°0
112 °
Lookout Mountain, Sunday, 9 August
Clear. High 112°, low 89°.
Pressure29.80 inHg
Wind5.5 mph W
Humidity21%
Visibility6.2 mi
Dew point55°
Mon, 10107° / 84°0.03
107 °
Lookout Mountain, Monday, 10 August
Light rain. High 107°, low 84°.
Pressure29.83 inHg
Wind9.2 mph W
Humidity28%
Visibility6.2 mi
Dew point61°
Tue, 11103° / 83°0.02
103 °
Lookout Mountain, Tuesday, 11 August
Light rain. High 103°, low 83°.
Pressure29.88 inHg
Wind6.9 mph W
Humidity33%
Visibility6.2 mi
Dew point62°
Wed, 1296° / 85°0.46
96 °
Lookout Mountain, Wednesday, 12 August
Rain. High 96°, low 85°.
Pressure29.85 inHg
Wind8.3 mph NW
Humidity41%
Visibility6.2 mi
Dew point63°
Thu, 13100° / 81°0.5
100 °
Lookout Mountain, Thursday, 13 August
Rain. High 100°, low 81°.
Pressure29.83 inHg
Wind12.6 mph W
Humidity41%
Visibility—
Dew point62°
Fri, 14101° / 89°0
101 °
Lookout Mountain, Friday, 14 August
Overcast. High 101°, low 89°.
Pressure29.88 inHg
Wind9 mph NW
Humidity26%
Visibility—
Dew point53°
Sat, 15104° / 92°0
104 °
Lookout Mountain, Saturday, 15 August
Overcast. High 104°, low 92°.
Pressure29.94 inHg
Wind12.4 mph W
Humidity22%
Visibility—
Dew point51°
Sun, 16105° / 93°0
105 °
Lookout Mountain, Sunday, 16 August
Partly cloudy. High 105°, low 93°.
Pressure29.94 inHg
Wind11.3 mph W
Humidity20%
Visibility—
Dew point49°
Mon, 17106° / 94°0.01
106 °
Lookout Mountain, Monday, 17 August
Light rain. High 106°, low 94°.
Pressure29.91 inHg
Wind13.8 mph SE
Humidity24%
Visibility—
Dew point55°
Tue, 18105° / 88°0.09
105 °
Lookout Mountain, Tuesday, 18 August
Light rain. High 105°, low 88°.
Pressure29.88 inHg
Wind16.2 mph NE
Humidity26%
Visibility—
Dew point57°
Wed, 19101° / 87°0
101 °
Lookout Mountain, Wednesday, 19 August
Light rain. High 101°, low 87°.
Pressure29.91 inHg
Wind13.3 mph SW
Humidity32%
Visibility—
Dew point59°
Thu, 20100° / 90°0.16
100 °
Lookout Mountain, Thursday, 20 August
Light rain. High 100°, low 90°.
Pressure29.88 inHg
Wind19.1 mph E
Humidity32%
Visibility—
Dew point61°
Fri, 2198° / 87°0.1
98 °
Lookout Mountain, Friday, 21 August
Light rain. High 98°, low 87°.
Pressure29.85 inHg
Wind13 mph NE
Humidity37%
Visibility—
Dew point62°
Sat, 2295° / 85°0.1
95 °
Lookout Mountain, Saturday, 22 August
Light rain. High 95°, low 85°.
Pressure29.88 inHg
Wind18.6 mph W
Humidity34%
Visibility—
Dew point58°
Sun, 23100° / 86°0
100 °
Lookout Mountain, Sunday, 23 August
Overcast. High 100°, low 86°.
Pressure29.88 inHg
Wind9.2 mph NE
Humidity34%
Visibility—
Dew point58°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 24101° / 80°0.02
101 °
Lookout Mountain, Monday, 24 August
Climate normal for this date — 60-year average.
Average high101°
Average low80°
Average precipitation0.02 in
Chance of precipitation15%
Record high113° (2020)
Record low67° (1992)
Tue, 25101° / 79°0.03
101 °
Lookout Mountain, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high101°
Average low79°
Average precipitation0.03 in
Chance of precipitation22%
Record high111° (2011)
Record low69° (1990)
Wed, 26102° / 80°0.03
102 °
Lookout Mountain, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high102°
Average low80°
Average precipitation0.03 in
Chance of precipitation17%
Record high112° (2001)
Record low69° (1960)
Thu, 27102° / 80°0.03
102 °
Lookout Mountain, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high102°
Average low80°
Average precipitation0.03 in
Chance of precipitation15%
Record high111° (2011)
Record low69° (1992)
Fri, 28103° / 79°0.02
103 °
Lookout Mountain, Friday, 28 August
Climate normal for this date — 60-year average.
Average high103°
Average low79°
Average precipitation0.02 in
Chance of precipitation7%
Record high113° (2023)
Record low70° (1960)
Sat, 29102° / 79°0.04
102 °
Lookout Mountain, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high102°
Average low79°
Average precipitation0.04 in
Chance of precipitation12%
Record high112° (2023)
Record low70° (1960)
Sun, 30102° / 80°0.03
102 °
Lookout Mountain, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high102°
Average low80°
Average precipitation0.03 in
Chance of precipitation13%
Record high110° (2011)
Record low69° (1992)
Mon, 31102° / 80°0.02
102 °
Lookout Mountain, Monday, 31 August
Climate normal for this date — 60-year average.
Average high102°
Average low80°
Average precipitation0.02 in
Chance of precipitation12%
Record high110° (2011)
Record low68° (1962)
Tue, 01101° / 79°0.04
101 °
Lookout Mountain, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high101°
Average low79°
Average precipitation0.04 in
Chance of precipitation12%
Record high110° (1982)
Record low64° (1992)
Wed, 02101° / 79°0.06
101 °
Lookout Mountain, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high101°
Average low79°
Average precipitation0.06 in
Chance of precipitation15%
Record high109° (1982)
Record low63° (1992)
Thu, 03101° / 78°0.01
101 °
Lookout Mountain, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high101°
Average low78°
Average precipitation0.01 in
Chance of precipitation8%
Record high109° (2022)
Record low66° (1992)
Fri, 04101° / 78°0.06
101 °
Lookout Mountain, Friday, 4 September
Climate normal for this date — 60-year average.
Average high101°
Average low78°
Average precipitation0.06 in
Chance of precipitation10%
Record high112° (2020)
Record low64° (1961)
Sat, 05100° / 78°0.08
100 °
Lookout Mountain, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high100°
Average low78°
Average precipitation0.08 in
Chance of precipitation15%
Record high113° (2020)
Record low62° (1992)
Sun, 06100° / 78°0.04
100 °
Lookout Mountain, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high100°
Average low78°
Average precipitation0.04 in
Chance of precipitation12%
Record high111° (2020)
Record low62° (1970)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Lookout Mountain, AZ are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Lookout Mountain, AZ since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.